{"id":"https://openalex.org/W2019560659","doi":"https://doi.org/10.1109/embc.2014.6943531","title":"Classification of healthy subjects and patients with pulmonary emphysema using continuous respiratory sounds","display_name":"Classification of healthy subjects and patients with pulmonary emphysema using continuous respiratory sounds","publication_year":2014,"publication_date":"2014-08-01","ids":{"openalex":"https://openalex.org/W2019560659","doi":"https://doi.org/10.1109/embc.2014.6943531","mag":"2019560659","pmid":"https://pubmed.ncbi.nlm.nih.gov/25569899"},"language":"en","primary_location":{"id":"doi:10.1109/embc.2014.6943531","is_oa":false,"landing_page_url":"https://doi.org/10.1109/embc.2014.6943531","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5040263886","display_name":"Takanori Okubo","orcid":null},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Takanori Okubo","raw_affiliation_strings":["The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan"],"affiliations":[{"raw_affiliation_string":"The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","institution_ids":["https://openalex.org/I43777268"]},{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan","institution_ids":["https://openalex.org/I43777268"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101957083","display_name":"Naoki Nakamura","orcid":"https://orcid.org/0000-0002-4592-4114"},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Naoki Nakamura","raw_affiliation_strings":["The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan"],"affiliations":[{"raw_affiliation_string":"The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","institution_ids":["https://openalex.org/I43777268"]},{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan","institution_ids":["https://openalex.org/I43777268"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024606959","display_name":"Masaru Yamashita","orcid":"https://orcid.org/0000-0001-8545-6645"},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masaru Yamashita","raw_affiliation_strings":["The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan"],"affiliations":[{"raw_affiliation_string":"The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","institution_ids":["https://openalex.org/I43777268"]},{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan","institution_ids":["https://openalex.org/I43777268"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108370359","display_name":"Shoichi Matsunaga","orcid":null},"institutions":[{"id":"https://openalex.org/I43777268","display_name":"Nagasaki University","ror":"https://ror.org/058h74p94","country_code":"JP","type":"education","lineage":["https://openalex.org/I43777268"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shoichi Matsunaga","raw_affiliation_strings":["The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan"],"affiliations":[{"raw_affiliation_string":"The Graduate School of Engineering, Nagasaki University, Nagasaki, Japan","institution_ids":["https://openalex.org/I43777268"]},{"raw_affiliation_string":"Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521 Japan","institution_ids":["https://openalex.org/I43777268"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5040263886"],"corresponding_institution_ids":["https://openalex.org/I43777268"],"apc_list":null,"apc_paid":null,"fwci":0.7067,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.73276113,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"2014","issue":null,"first_page":"70","last_page":"73"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T12419","display_name":"Phonocardiography and Auscultation Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12418","display_name":"Respiratory and Cough-Related Research","score":0.9595999717712402,"subfield":{"id":"https://openalex.org/subfields/2740","display_name":"Pulmonary and Respiratory Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11309","display_name":"Music and Audio Processing","score":0.9240999817848206,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.6214460134506226},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5796244144439697},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5240978002548218},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.489788293838501},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.47292688488960266},{"id":"https://openalex.org/keywords/pulmonary-emphysema","display_name":"Pulmonary emphysema","score":0.44552695751190186},{"id":"https://openalex.org/keywords/respiratory-rate","display_name":"Respiratory rate","score":0.42062050104141235},{"id":"https://openalex.org/keywords/lung","display_name":"Lung","score":0.37730538845062256},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.3558807373046875},{"id":"https://openalex.org/keywords/radiology","display_name":"Radiology","score":0.2133345901966095},{"id":"https://openalex.org/keywords/internal-medicine","display_name":"Internal medicine","score":0.15858152508735657},{"id":"https://openalex.org/keywords/heart-rate","display_name":"Heart rate","score":0.12363094091415405}],"concepts":[{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.6214460134506226},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5796244144439697},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5240978002548218},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.489788293838501},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.47292688488960266},{"id":"https://openalex.org/C2992836489","wikidata":"https://www.wikidata.org/wiki/Q188605","display_name":"Pulmonary emphysema","level":3,"score":0.44552695751190186},{"id":"https://openalex.org/C8213797","wikidata":"https://www.wikidata.org/wiki/Q754250","display_name":"Respiratory rate","level":4,"score":0.42062050104141235},{"id":"https://openalex.org/C2777714996","wikidata":"https://www.wikidata.org/wiki/Q7886","display_name":"Lung","level":2,"score":0.37730538845062256},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.3558807373046875},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.2133345901966095},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.15858152508735657},{"id":"https://openalex.org/C2777953023","wikidata":"https://www.wikidata.org/wiki/Q1073121","display_name":"Heart rate","level":3,"score":0.12363094091415405},{"id":"https://openalex.org/C84393581","wikidata":"https://www.wikidata.org/wiki/Q82642","display_name":"Blood pressure","level":2,"score":0.0}],"mesh":[{"descriptor_ui":"D000162","descriptor_name":"Acoustics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000162","descriptor_name":"Acoustics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000162","descriptor_name":"Acoustics","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006262","descriptor_name":"Health","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006262","descriptor_name":"Health","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006262","descriptor_name":"Health","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D011656","descriptor_name":"Pulmonary Emphysema","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012119","descriptor_name":"Respiration","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012135","descriptor_name":"Respiratory Sounds","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012135","descriptor_name":"Respiratory Sounds","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D012135","descriptor_name":"Respiratory Sounds","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D064368","descriptor_name":"Healthy Volunteers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D064368","descriptor_name":"Healthy Volunteers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D064368","descriptor_name":"Healthy Volunteers","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1109/embc.2014.6943531","is_oa":false,"landing_page_url":"https://doi.org/10.1109/embc.2014.6943531","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society","raw_type":"proceedings-article"},{"id":"pmid:25569899","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/25569899","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W27932798","https://openalex.org/W1524183799","https://openalex.org/W2028709512","https://openalex.org/W2060948635","https://openalex.org/W2094152707","https://openalex.org/W2135991670","https://openalex.org/W2149602666","https://openalex.org/W2152384461","https://openalex.org/W2158135394","https://openalex.org/W2341048097","https://openalex.org/W6631611901","https://openalex.org/W6680128203","https://openalex.org/W6703853647"],"related_works":["https://openalex.org/W2004680219","https://openalex.org/W2419084570","https://openalex.org/W4379231730","https://openalex.org/W4389858081","https://openalex.org/W2501551404","https://openalex.org/W4385583601","https://openalex.org/W4298131179","https://openalex.org/W2113201962","https://openalex.org/W2415576948","https://openalex.org/W4395685956"],"abstract_inverted_index":{"In":[0,59],"this":[1],"paper,":[2],"we":[3],"propose":[4],"a":[5,85,99,144],"new":[6],"method":[7,97],"for":[8,84],"classifying":[9],"patients":[10],"with":[11,87,92],"pulmonary":[12],"emphysema":[13],"and":[14,28,49,90,107],"healthy":[15,105],"subjects":[16,106],"using":[17,119],"lung":[18,145],"sounds.":[19],"Using":[20],"conventional":[21,121],"classification":[22,70,100,141],"methods,":[23],"every":[24],"boundary":[25],"between":[26,80,104],"inspiratory":[27],"expiratory":[29],"phases":[30,151],"in":[31,55,68,142],"successive":[32],"respiratory":[33],"sounds":[34],"are":[35,65],"detected":[36,66],"manually":[37],"prior":[38],"to":[39],"automatic":[40,57],"classification.":[41,58],"However,":[42],"manual":[43,125],"segmentation":[44],"must":[45],"be":[46],"performed":[47],"accurately":[48],"has":[50],"therefore":[51],"created":[52],"significant":[53],"obstacles":[54],"achieving":[56],"our":[60],"proposed":[61,96,160],"method,":[62,122],"adequate":[63],"boundaries":[64],"automatically":[67],"the":[69,74,78,81,116,120,129,136,140,156,159],"process,":[71],"based":[72],"on":[73],"criterion":[75],"of":[76,102,152,158],"maximizing":[77],"difference":[79],"acoustic":[82],"likelihoods":[83],"candidate":[86],"abnormal":[88],"respiration":[89],"one":[91],"normal":[93],"respiration.":[94],"The":[95,109],"achieved":[98,118],"rate":[101,111,117,131,137],"83.9%":[103],"patients.":[108],"reported":[110],"was":[112,132,148],"1.3%":[113],"greater":[114],"than":[115,135],"which":[123,143],"required":[124],"phase-wise":[126],"segmentation.":[127],"Furthermore,":[128],"resulting":[130],"2.2%":[133],"higher":[134],"obtained":[138],"by":[139],"sound":[146],"sample":[147],"divided":[149],"into":[150],"equal":[153],"duration,":[154],"indicating":[155],"effectiveness":[157],"method.":[161]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}